2778883525663 has 16 divisors (see below), whose sum is σ = 3240875756800. Its totient is φ = 2381756649048.

The previous prime is 2778883525631. The next prime is 2778883525681. The reversal of 2778883525663 is 3665253888772.

It is not a de Polignac number, because 2778883525663 - 2⁵ = 2778883525631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2778883525592 and 2778883525601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778883525063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5665156 + ... + 6136102.

It is an arithmetic number, because the mean of its divisors is an integer number (202554734800).

Almost surely, 2^{2778883525663} is an apocalyptic number.

2778883525663 is a deficient number, since it is larger than the sum of its proper divisors (461992231137).

2778883525663 is an equidigital number, since it uses as much as digits as its factorization.

2778883525663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488171 (or 488157 counting only the distinct ones).

The product of its digits is 812851200, while the sum is 70.

The spelling of 2778883525663 in words is "two trillion, seven hundred seventy-eight billion, eight hundred eighty-three million, five hundred twenty-five thousand, six hundred sixty-three".